JPS56137166A - Detecting method of leakage current - Google Patents

Detecting method of leakage current

Info

Publication number
JPS56137166A
JPS56137166A JP3992680A JP3992680A JPS56137166A JP S56137166 A JPS56137166 A JP S56137166A JP 3992680 A JP3992680 A JP 3992680A JP 3992680 A JP3992680 A JP 3992680A JP S56137166 A JPS56137166 A JP S56137166A
Authority
JP
Japan
Prior art keywords
leakage current
winding
pll
zct
low frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP3992680A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6330583B2 (enrdf_load_html_response
Inventor
Tatsuji Matsuno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyo Communication Equipment Co Ltd
Original Assignee
Toyo Communication Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyo Communication Equipment Co Ltd filed Critical Toyo Communication Equipment Co Ltd
Priority to JP3992680A priority Critical patent/JPS56137166A/ja
Priority to US06/226,620 priority patent/US4422034A/en
Publication of JPS56137166A publication Critical patent/JPS56137166A/ja
Publication of JPS6330583B2 publication Critical patent/JPS6330583B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Emergency Protection Circuit Devices (AREA)
JP3992680A 1980-01-22 1980-03-27 Detecting method of leakage current Granted JPS56137166A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP3992680A JPS56137166A (en) 1980-03-27 1980-03-27 Detecting method of leakage current
US06/226,620 US4422034A (en) 1980-01-22 1981-01-19 Method for measuring insulation resistance and device therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3992680A JPS56137166A (en) 1980-03-27 1980-03-27 Detecting method of leakage current

Publications (2)

Publication Number Publication Date
JPS56137166A true JPS56137166A (en) 1981-10-26
JPS6330583B2 JPS6330583B2 (enrdf_load_html_response) 1988-06-20

Family

ID=12566533

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3992680A Granted JPS56137166A (en) 1980-01-22 1980-03-27 Detecting method of leakage current

Country Status (1)

Country Link
JP (1) JPS56137166A (enrdf_load_html_response)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59202071A (ja) * 1983-04-30 1984-11-15 Hitachi Cable Ltd ケ−ブルの活線時絶縁診断法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5657964A (en) * 1979-10-16 1981-05-20 Yokogawa Hokushin Electric Corp Insulation tester

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5657964A (en) * 1979-10-16 1981-05-20 Yokogawa Hokushin Electric Corp Insulation tester

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59202071A (ja) * 1983-04-30 1984-11-15 Hitachi Cable Ltd ケ−ブルの活線時絶縁診断法

Also Published As

Publication number Publication date
JPS6330583B2 (enrdf_load_html_response) 1988-06-20

Similar Documents

Publication Publication Date Title
GB1402500A (en) Gfi circuit having tuned circuit fault detector
ATE79680T1 (de) Phasendetektor.
JPS56137166A (en) Detecting method of leakage current
JPS5255361A (en) Variable frequency oscillator
JPS553238A (en) Reception frequency display system
JPS53142260A (en) Method and apparatus of detecting metal objects
JPS5616328A (en) Phase synchronous loop device
JPS5443012A (en) Amplitude envelope detector of signal waves
JPS532060A (en) High harmonic generator
JPS57175276A (en) Delayed time measuring circuit
JPS52124849A (en) Timing signal detection circuit
JPS5312A (en) Am receiver
GB1485663A (en) Details of an uphole receiver for a logging-while-drilling system
JPS56150361A (en) Surface electrometer
JPS52107755A (en) Nonsynchronous state detection circuit of phase synchronous oscillator
JPS578460A (en) Earth resistance tester
FR2429441A1 (fr) Procede de diagraphie utilisant un champ electromagnetique alternatif et appareil correspondant
JPS56125602A (en) Moving object detector
SU1099228A1 (ru) Устройство дл геоэлектроразведки
JPS5741018A (en) Dynamic tracking filter of injection synchronizing oscillator type
JPS5549047A (en) Fm receiver
JPS53144240A (en) Signal detection circuit
JPS5682451A (en) Voltage measuring circuit
JPS5654573A (en) Signal detector using differential transformer type magnetic head
JPS5229764A (en) Search coil